Fitting for fluid containers



July 28, 1931. I COLLIER 1,816,004

FITTING FOR FLUID CONTAINERS Filed Jan. 27, 1925 2 Sheets-Sheet l July 28, 1931. H. D. COLLIER 1,816,004

FITTING FOR FLUID CONTAINERS Filed Jan. 27, 1925 v 2 Sheets-Sheet 2 gnuenfot Patented July 28, 1931 UNITED STATES PATENT OFFICE HENRY DEWARD COLLIER, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR, BY MESNE AS- SIGNMENTS, TO STANDARD OIL COMPANY OF CALIFORNIA, OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF DELAWARE FITTING FOR FLUID CONTAINERS Application filed January 27, 1925. Serial No. 5,168.

' This invention relates to fittings for fluid I Containers and is more particularly directed ing, depending upon which portion of the engine or appended communicating parts is the lowest point of the lubricant container. This application is a continuation in part apparatus for discharging lubricant from motor vehicles, filed February 9, 1924, Serial No. 691,861, upon which Letters Patent No. 1,607,697 were granted and issued December 7, 1926.

An object of this invention is to provide fittings that can be easily attached to the lubricant port of an engine either as a substituted fitting for a discharge drain, now

. commonly provided in all motor vehicle en- I gines or that may be suitable for attachment with the lubricant container at its lowest point when the engine is originally assembled.

An object of this invention is to provide a lubricant discharge fitting adapted to be secured to a lubricant container in fluid tight relation, wherein it will permit an unobstructed flow of lubricant from the container so that not only the lubricant will be discharged from the'container but all sediment or solid material deposited in the lubricant during its use, in order that the crank case may be thoroughly cleansed before new lubricant is introduced therein.

- An object of this invention is to provide means for connecting a lubricant discharge tube in fluid tight relation tothe lowest point of the lubricant reservoir of a motor vehicle and which discharge tube terminates at a point above the normal level of the 011 in said reservoir. a

An object of this invention is to provide, a

" fitting adapted to be attached to any of the of my co-pending application for system and -well known types of motor vehicle engines,

and which is of such construction and mode of attachment that the same can be secured to the oil reservoir by inexperienced persons and will not introduce any additional liability to oil leakage.

An object of this invention is to provide fittings of the above enumerated char'acteristics of such construction that the same may be installed without interference with the function of any part or system of the motor vehicle to which it is attached and so that such installation shall be such as not to materially decrease the road clearance of the vehicle engine.

Further objects'and advantages of this invention will be apparent from the following detailed description of the preferred embodiment thereof, as illustrated in the accompanying drawings.

In the drawings:

Figure 1 is a side elevation of a vehicle motor illustrating a crank case fitting adapt-- ed thereto, embodying this invention.

Y Fig. 2 is an enlarged fragmental end view of a lubricant container taken substantially on line 22 of Fig. 1, illustrating one form of fitting embodying this invention adapted thereto.

Fig. 3 is a central section side elevation of the fitting illustrated in Fig. 2.

Fig. 4 isa plan view; and

Fig. 5 is a side elevation of a ring embodying this invention.

Fig. 6 is a plan view of a bushing adapted for use in connection with the fitting illustrated in Fig. 2.

. Fig. 7- is a central sectional side elevation of thebushing illustrated in Fig. 4.

Fig. 8 is a plan viewof a plug embodied in this invention.

Fig. 9 is a side elevation of the plug illustrated in Fig. 6,

Fig. 10 is a central sectional side elevation of a modified form of fitting embodying this invention.

Fig. 11 is a plan view; and v Fig. 12 is a side elevation of a hollow plug embodied in the modified forrri of this invention illustrated in Fig. 10,

Fig. 13 is a plan view, and

Fig. 14 is a side elevation of a plug embodied in the modified form of this invention, illustrated in Fig. 10,

Fig. 15 is a central section side elevation of a second modified form of fitting embodying this invention.

Fig. 16 is a plan view, and

invention illustrated in Fig. 15,

Fig. 18 is a plan view, and

Fig. 19 is a central sectional side elevation of a ring embodied in the modification of this invention illustrated in Fig. 15.

Fig. 20 is a central sectional side elevafitting 4 being adapted to connect a discharge tubing 5 to the said lowest point of the lubricant container or reservoir so that a flexible tube or hose may be connected to its upper end 6 so the lubricant may be withdrawn by means of a pressure acting on the lubricant within the container greater than the pressure in the container to which the flexible hose 25 is connected. The discharge tube 5 is preferably of malleable metal,- of such nature, that in the assembling of the fitting 4 with the tube 5, that when the tube 5 is bent to its proper position the metal forming the tube 5 will harden and retain the tube 5 in its proper position. The tube 5 is preferably secured to the engine at any suitable pointsuch as indicated at 7. I The tube 5 is connected to the drain opening in the motor vehicle lubricant case preferably at its lowest point, and is extended upward to some point readily accessible from above, to which the flexible tube 5 can be easily attached. The tube 5 must be of durable non-collapsible metal, preferably of c rcular cross section, which can be easily made to. conform to the'contour of the various adjacent parts of the engine and of sufli-.

cient rigidity to maintain such conformity when properly attached and supported. The

tube 5 should be of sufficient internal di- Fig. 17 is a side elevation of a hollow plug embodied in the modified form of this The crank case 2 provides a, lubricant container or reservoir to the lower point of which is connected a fitting 4, said ameter to allow a reasonable flow of fluid over all possible conditions of temperature and viscosity and at the same time maintain a sufficiently high velocity of the lubricant to effectively discharge the particles" of solid matter, such as carbon formed in the lubricant during its use. The preferred diameters of this tube has been found to be inch outside diameter .and inside diameter when the same was employed to withdraw lubricant from the case 2 employing the vac.- uum produced in the apparatus disclosed in that copendingapplication of HenryD. Collier heretofore referred to.

In Fig. 2 the upper end of the tube 5 is illustrated. as connected with a flexible hose (or eduction tube) 25 by means of a nozzle 26, which nozzle 26 may be of any desired form which will allow a quick and easy connection of the tube 5 with the hose 25. The tube 25 (while the same may be of any particular size desired) has been found to be most suited for the purpose of a carrier for withdrawingthe lubrieant by means of a reduced pressure exerted on the opposite end thereof by any suitable means (not shown) when the same is between one half a non-collapsible material, for the reason that the tube 25 must be of such internal diameter as to allow a fairly rapid withdrawal of lubricant with a reasonable hydraulic loss and still be of such diameter that the same will be-thoroughly cleaned of solid material when air is drawn therethrough after the lubricant is completely withdrawn from the lubricant case.

Referring now to Figs. 3 to 9, inclusive, the fitting 4 therein illustrated is of the following construction and relation to the lubricant reservoir 2 The bore 8 of this lubricant reservoir is provided with tapered threads of such'diameter as to permit the inserting therein of a tapered bushing 9 having an internally threaded bore 10 and a bore of larger diameter 11 at its upper end lubricant in the reservoir tends to flow. The lubricant well provided in the bushing 9 or by the central bore 13 of the hollow plug 12 will be below the lowest point to provide a lubricant well into which the of the crank case and provides a well in which the detritus, such as finely divided carbon and portions of steel, will drain so that when the crank case is drained, the first lubricant that is caused to flow through such lubricant well will tend to carry with it the detritus from the crank case out "through the tube 5.

Threaded within the bushing 9 is a hollow plug 12 having a central bore 13 within the plug 12 as indicated at-14. Communicatingwith the bore-13 are a plurality of transversebores 15 for allowing oil to flow into the recess 16 formedbetween the plug 12 and a ring 17, which ring 17 is of greater internal diameter than the external diameter of the plug 12 and is secured in position nection between the said ring 17 and the bushing 9. The lower end of the discharge tube is secured within the bore 20 of the ring 17 so as to provide direct communica' tion between the lowest point of the oil reservoir and discharge tube 5, it being important that the upper end of the discharge tube 5 be above the'normal level of the oil within the reservoir.

As indicated in Fig. 1, at 21, it is preferable that the discharge tube 5 be provided with a dust cap.

Referring now to Figs. to 14, inclusive, the fitting here shown comprises a bushing or plug 9 having a central bore passing therethrough, the lower end of which bore is threaded to receive a plug -12a. An enlarged recess 11a is provided as in the above set forth fitting and the'bore of the bushing 9a communicates with a plurality of forwardly and outwardly extending bores 15-a which bores 15a communicate with a recess 16a formed between the outer surface of the bushing 9-a and the inner surface of the ring 17a. The bushing 9a in this case is provided with an extended portion 21a against which the ring 17a is forced by means of threading the cap- 12a within the bOre of said bushing 9-4;, there being provided. packing rings 19a between the surfaces of the ring 17a, the lower surface of the extended portion 21a and the upper surface of the cap 12-a. This latter fitting is adapted for use in connection with a lubricant reservoir wherein the bore 8a is of small internal diameter as compared with the bore 8 for the previously described fitting.

The modified forms of fitting illustrated in Figs. 15 to 19, inclusive, and in Figs. 20, 21 and 22,- are the same except for the type of ring employed, the modification illustrated in Figs. 15 to 19 being for use in connection with a port 8 of lubricant reservoir in which the under surface of the reservoir is countersunk, as illustratedat 22 @This form of fitting comprises a hollow plug 12 screw threaded within the bore 8 of the'oil reservoir, and having a central bore 13 terminating short of its lower end. A' plurality of transverse bores 15 permit communication of the oil within cumferential shoulder 23 adapted to approximately fit the outer diameter of the plug 12*. Packing 19 is provided in this fitting as in the former cases. The fitting illustrated in Fig. comprises a hollow plug 12 of practically the same construction as the hollow plug 12 and this fitting differs in construction from that fitting last above set forth in -that the ring 17 of this fitting is exactly similar to the rings 17 and 17 nection with an oil reservoir having a bore 8 of small internal diameter around which bore 8 a boss 24 is formed.

It will be apparent that anyone of the above fittings is adapted to carry out the objects of this invention as heretofore ex pressed and that the same when installed will allow a free and uninterrupted withdrawal of the lubricant and all foreign matter from the oil reservoir while providing a fitting that will not interfere with any function of the engine and a fitting the installation of which may be easily and quickly accomplished.

Having fully described a preferred modification of this invention, it is to be understood that I do not wish to be limited to the exact construction herein set forth. My invention is of the scope of the appended claims:

I claim:

1. In combination with a lubricant-containing case of a motor vehicle, said case having a drainage outlet, a hollow plug fitting in the outlet and provided with a port, an annular member surrounding the ported portion of the plug spaced therefrom, means for holding said annular member in position and a tube communicating through the annular member and extending to a point above the normal oil level in the said case.

2. The combination with a lubricant containing case of a motor vehicle, said case having a tapered drainage outlet of a bushing fitting in the outlet, a hollow plug fitting in the bushing and providedwith a port, an annular member secured to the ported portion of the plug and spaced there- 3. The combination with a lubricantv con-- taining case of a motor vehicle, said case having a'drainage outlet,of a hollow plug fitting in the outlet and provided with a port, an annular member surrounding the ported portion of the plug and spaced therefrom, means to hold said annular member in position, and a tube at one end connected with the annular member and communicating with the interior thereof, and extending to a point above the normal oil level in the crank case.

4. The combination of a lubricant con- This fitting is adapted for use in conion taining case of a motor vehicle, said case having a drainage outlet, of a hollow plug fitting in the outlet and provided with a plurality of ports, an annular member surrounding the ported portion of the plug and spaced therefrom, means for holding said annular member in position, a malleable tube connected at one end with the annular member and communicating with the interior thereof, and having its opposite end open to communication with the atmosphere at a point above the lubricant level in the crank case, and means for securing the said tube in position near its upper end.

5. The combination with a lubricant containing case of a motor vehicle, said case having a drainage outlet of a tube, and means for connecting one end of said tube to the said case in fluid tight relation, the other end of said tube being in free communication with the atmosphere at a point above the normal level of the lubricant in the crank case, the said connecting means providing a detritus receiving well.

6. The combination with a lubricant containing case of a motor vehicle, said case having a drainage outlet of a tube of malleable metal, means for securing one end of said tube in open communication with said outlet so as to provide a fluid tight connection with said case, the opposite end of said tube being normally fitted with a dust cap, the said securing means providing a detritus receiving well.

7. The combination with a lubricant con taining case of a motor vehicle, of a fitting secured to the under side of the case and providing a lubricant well into which the detritus will pass, and a tube communicating with the fitting below the lowest point of the crank case and extending exteriorly of the case to a point above the lubricant level in the case.

8. The combination with a lubricant containing case of a motor vehicle having a drainage outlet, of a bushing fitted in the outlet, a hollow plug secured to the bushing, a ring mounted on the hollow plug and engaged with the bushing, and ports formed through the hollow plug for maintaining communication through the hollow plug with a conduit connected to the said ring.

9. The combination with a lubricant containing case of a motor vehicle having a drainage outlet, of a bushing fitted in the outlet, and'providing a lubricant well below the level of the case', a hollow plug screw-threaded into the bushing, a ring mounted on the hollow plug and providing an annular recess, alateral port in the hollow plug for establishing communication between the said well and the said recess, and a conduit secured to the plug in open communication with the said recess.

10. The combination with a lubricant con- 

